23 lines
676 B
Plaintext
23 lines
676 B
Plaintext
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in vec3 TexCoords;
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out vec4 FragColor;
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uniform samplerCube textureSource;
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uniform vec2 ScaleU;
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void main()
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{
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vec3 sampleDir = normalize(TexCoords);
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vec3 right = normalize(cross(sampleDir, vec3(0.0, 1.0, 0.0)));
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vec3 up = normalize(cross(right, sampleDir));
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vec3 color = vec3(0.0);
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float total = 0.0;
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for (float x = -4.0; x <= 4.0; x += 1.0) {
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for (float y = -4.0; y <= 4.0; y += 1.0) {
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vec3 offset = right * ScaleU.x * x + up * ScaleU.y * y;
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color += texture(textureSource, normalize(sampleDir + offset)).rgb;
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total += 1.0;
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}
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}
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FragColor = vec4(color / total, 1.0);
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}
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